<be affected than::animal_2::animal_1>	<be susceptible than::animal_2::animal_1>
<eat::animal_1::animal_2>	<kill::animal_1::animal_2>
<eat::animal_2::animal_1>	<kill::animal_2::animal_1>
<be susceptible than::animal_1::animal_2>	<be affected than::animal_1::animal_2>
<be affected than::animal_1::animal_2>	<be susceptible than::animal_1::animal_2>
<be susceptible than::animal_2::animal_1>	<be affected than::animal_2::animal_1>
